Wavelength-shift composite light-storing powder and method of manufacturing and applying the same

Abstract

A wavelength-shift composite light-storing powder and method of manufacturing and applying the same. Wherein, inorganic metal oxide and light-storing material containing rare earth elements are made to collide at high speed in an environment of extremely low temperature. The collision process makes said inorganic metal oxide to produce fusion reaction on surface of said light-storing material, that causes changes of lattice structure, to generate photon shift phenomenon and produce said wavelength-shift composite light-storing powder. Said composite light-storing powder is apt to engage cross-linked structure of thermoplastic polymer in a high temperature blending process, to achieve even distribution. Finally, through a filament process to produce successfully light-storing fibers capable of emitting lights of various wavelengths, to raise its heat resistance and wash durability.

Description

REFERENCE TO RELATED APPLICATION[0001]The present application is a divisional application of U.S. application Ser. No. 13 / 946,139, filed Jul. 19, 2013, which claims priority to Taiwanese Application Serial Number 102115123, filed Apr. 26, 2013. The entire disclosures of all the above applications are hereby incorporated by reference herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a light-storing material, and in particular to a wavelength-shift composite light-storing powder and method of manufacturing and applying the same, that is made through using an inorganic metal oxide.[0004]2. The Prior Arts[0005]Since the discovery of the long afterglow phenomenon in the early 20th century, the development of the light-storing material has progressed rapidly. Various light-storing materials are utilized extensively in the manufacturing of the light-storing objects. The light-storing material is able to emit specific lights after absorb...

AI Technical Summary

Benefits of technology

The present invention provides a wavelength-shift composite light-storing powder and a method of manufacturing and applying it. The composite powder has metal ions embedded in it, which allows for photon jump across energy gaps and produce a cool color series light wavelength. This upgrade from a single wavelength light emission to a multi-wavelength light emission increases its application scope and competitiveness. Additionally, the invention allows for the light-storing material to emit lights of various colors, enhance heat resistance, and reduce the amount of material used. The manufacturing method involves mixing the multi-wavelength composite light-storing powder with thermoplastic polymer and other agents, melt blending, cross linking, and obtaining the light-storing masterbatches which can be further processed into light-storing fibers. The resulting fibers have sufficient luminance even after being washed with water and can be used in various industries such as commodity, textile, indoor decoration, and safety products.

Problems solved by technology

However, usually, the conventional light-storing fiber must use high contents of light-storing powder, about 30% by weight, thus it has the drawback of high production cost, monotonous emitted light color, and it can not be mass produced.

Also, it has the problem of insufficient heat resistance for the spinning and yarning processes, and the fiber applying process does not have wash durability, and can not withstand filament processing and rectification.

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